ehci-pci: print hccr, hcor and hc_lenght
[people/ms/u-boot.git] / drivers / usb / host / ehci-pci.c
1 /*-
2 * Copyright (c) 2007-2008, Juniper Networks, Inc.
3 * All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation version 2 of
8 * the License.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
18 * MA 02111-1307 USA
19 */
20
21 #include <common.h>
22 #include <pci.h>
23 #include <usb.h>
24
25 #include "ehci.h"
26 #include "ehci-core.h"
27
28 #ifdef CONFIG_PCI_EHCI_DEVICE
29 static struct pci_device_id ehci_pci_ids[] = {
30 /* Please add supported PCI EHCI controller ids here */
31 {0x1033, 0x00E0},
32 {0, 0}
33 };
34 #endif
35
36 /*
37 * Create the appropriate control structures to manage
38 * a new EHCI host controller.
39 */
40 int ehci_hcd_init(void)
41 {
42 pci_dev_t pdev;
43 uint32_t addr;
44
45 pdev = pci_find_devices(ehci_pci_ids, CONFIG_PCI_EHCI_DEVICE);
46 if (pdev == -1) {
47 printf("EHCI host controller not found\n");
48 return -1;
49 }
50
51 pci_read_config_dword(pdev, PCI_BASE_ADDRESS_0, &addr);
52 hccr = (struct ehci_hccr *)addr;
53 hcor = (struct ehci_hcor *)((uint32_t) hccr +
54 HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
55
56 debug("EHCI-PCI init hccr 0x%x and hcor 0x%x hc_length %d\n",
57 (uint32_t)hccr, (uint32_t)hcor,
58 (uint32_t)HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
59
60 return 0;
61 }
62
63 /*
64 * Destroy the appropriate control structures corresponding
65 * the the EHCI host controller.
66 */
67 int ehci_hcd_stop(void)
68 {
69 return 0;
70 }